chore: bump io-uring dependency to 0.5.9 (tokio-rs#182)

Author: FrankReh

Cargo.toml

@@ -20,7 +20,7 @@ keywords = ["async", "fs", "io-uring"]
 tokio = { version = "1.2", features = ["net", "rt"] }
 slab = "0.4.2"
 libc = "0.2.80"
-io-uring = { version = "0.5.8", features = ["unstable"] }
+io-uring = { version = "0.5.9", features = ["unstable"] }
 socket2 = { version = "0.4.4", features = ["all"] }
 bytes = { version = "1.0", optional = true }